CN106706057A - Single flowmeter type fuel consumption measuring device - Google Patents
Single flowmeter type fuel consumption measuring device Download PDFInfo
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- CN106706057A CN106706057A CN201510487207.0A CN201510487207A CN106706057A CN 106706057 A CN106706057 A CN 106706057A CN 201510487207 A CN201510487207 A CN 201510487207A CN 106706057 A CN106706057 A CN 106706057A
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- oil
- fuel consumption
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Abstract
The invention provides a single flowmeter type fuel consumption measuring device. By utilizing measures of the fuel consumption measuring device such as reducing temperature, cooling the hot air down and the like, return oil without fully burning flows directly to engine for utilization instead of circularly flowing back to a fuel tank. The fuel consumption measuring device has no bad influence on engine performance, and is capable of solving the problem of an inaccurate measuring result caused by measuring oil return with high temperature and air in the meantime.
Description
Technical field
The present invention relates to a kind of fuel consumption measurement apparatus, in particular it relates to use list
The fuel consumption measurement apparatus of flowmeter, i.e. single current gauge type fuel consumption measurement apparatus.
Background technology
The fuel consumption values of accurate measurement engine and vehicle under various operating modes are for engine performance
Exploitation, engine evaluated and vehicle economy, energy saving tool have very important significance.But,
Existing market main flow is electric-control motor, and its design feature determines the returning-oil temperature of engine
Higher, return flow is big and contains gas, and these factors can all cause fuel consumption measurement error, passes
System uses oil drum and electronic scale weight method, low precision, assembly and disassembly trouble not to possess electrical interface,
Therefore cannot be compatible with miscellaneous equipment；The oil consumption metering device of prior art is most to be based on state's second order
The oil circuit characteristic (returning-oil temperature is not high, flow is smaller) of the mechanical pump engine of section is designed, than
Such as the small wild fuel consumption meter of Japan, up to special youth DFL-3, these fuel consumption measuring devices are exposed
The technological deficiency of precision low repeatability difference when testing the oil consumption of electric-control motor.And, it is current
Measuring method major part uses double fluid gauge, and high cost, assembly and disassembly are cumbersome, and stability is poor.At present
The fuel consumption meters such as in the market imported product such as Da Telang, small open country, although for some mechanical pump or
The electric-control motor product of specific electric-control system can be measured, but there is also measurement result repetition
Property poor, assembly and disassembly trouble, the defect such as working service cost is high.In order to caused by overcoming factors above
Measurement defect, market also occurs in that some use the fuel consumption measuring device of single current gauge, e.g., in
A kind of offset-type fuel consumption meter disclosed in state patent publication No. 103398751A, by casing top
End sets and is connected with the automatic exhaust steam valve of check valve and reaches the mesh of gas discharge contained by oil return
, but, the casing is divided into the oil return baffle in casing the chamber of left and right two for communicating up and down,
Oil return can be by flowing to right chamber, and flowmeter DFF Direct Fuel Feed to case by left chamber directly below
Body is rather than directly to engine oil, after a period of time, inevitably results in pressure mistake in casing
Greatly, so, the invention is provided with pressure check valve on the right side of casing again, it is therefore an objective to, when in casing
When pressure is excessive, the pressure check valve can be automatically opened up, and the oil return in casing is flow back into fuel tank.
If oil return flows back to fuel tank, then fuel tank out flow to engine fuel oil can by flowmeter,
Fuel consumption measurement result necessarily includes this part oil return for having measured, and causes duplicate measurements, surveys
Amount result is necessarily inaccurate.So, the fuel consumption meter of the invention pressure in casing is more than 0.7KPa
When, oil return flows back to fuel tank, and measurement result can be caused to have severe deviations.
The invention provides a kind of single current gauge type fuel consumption measuring device, engine does not fire fully
The oil return of burning is not recycled to oil after the cooling in measurement apparatus of the invention such as cools down at the measure
Case but directly flow back to engine and use, do not influence engine performance, at the same can solve due to
The inaccurate problem of the metering measurement result that causes of height temperate zone gas oil return.
The content of the invention
The invention provides a kind of single current gauge type fuel consumption measurement apparatus, measurement is especially suitable for
The oil consumption of engine and vehicle.Asked in order to the measurement result deviation for overcoming prior art to exist is big
Topic.Single current gauge type fuel consumption measurement apparatus of the invention include：Measuring unit casing and drop
Temperature is cooled down unit box；A flowmeter only need to be installed in the measuring unit casing, be used to survey
The oil pump capacity of masuring tank, the side of the measuring unit casing passes through pipeline and fuel tank oil-out phase
Even, opposite side is connected by pipeline with engine oiler；The unit box of cooling down of lowering the temperature
One end is connected with the oil return opening of engine, the other end by pipeline and the engine oiler with
Pipeline between the measuring unit casing is connected；The cool down bottom surface of unit box of the cooling sets
It is equipped with oil return baffle, cooling unit box of cooling down is divided into top and communicated by the oil return baffle
But two obstructed chambers of lower section.Set respectively on the wall box of the oil return baffle opposite sides
Have oiler and oil-out, the oiler is connected by pipeline with the engine, it is described go out
Hydraulic fluid port is by the pipeline between pipeline and the engine and the measuring unit casing oil-out
It is connected.The cool down oiler of unit box of the cooling is cooled down unit box bottom apart from the cooling
Position of the distance in face less than the oil-out；The substantially described drop of the height of the oil return baffle
Temperature cools down the 1/4~2/3 of unit box height.
As shown in figure 1, measuring unit casing 1 is provided with oiler 1A and oil-out 1B, fuel tank
Oil-out is connected after bavin is filtered with the oiler 1A of measuring unit casing 1, oil-out 1B
It is connected with engine oiler by pipeline.Cooling unit box 2 of cooling down is provided with oiler 2A
With oil-out 2B, oiler 2A is connected with the oil return opening of engine, and oil-out 2B is by pipe
Road enters oil after confluxing with the fuel oil of the oil-out 1B of measuring unit casing 1 outflows into engine
Mouthful.
Such as Fig. 2, the cooling bottom surface of unit box 2 of cooling down is provided with oil return baffle (2C), this time
2 points by casing of oil baffle 2C is two chambers that top communicates but lower section is obstructed, oil return baffle
Wall box on the right side of 2C is provided with oiler 2A, and oiler 2A is by high temperature resistant, resistance to
The pipeline of corrosion is connected with engine oil return mouthful, and the box body wall on the left of oil return baffle 2C is provided with
Oil-out 2B, is connected by pipeline with the pipeline of the oil-out 1B of measuring unit casing 1.Start
Unburned high temp oil-fired enters cartonning by the cool down oiler 2A of unit box 2 of cooling in machine
Chamber on the right side of the oil return baffle of body 2, then climbs along oil return baffle 2C, reaches 2C's
Oil return baffle 2C is crossed after height and declines the chamber on the left of flowing into, then flowed by oil-out 2B
Postback motivation.Gas outlet 2D is provided with the cooling top of unit box 2 of cooling down, gas outlet 2D
Inside it is provided with automatic exhaust steam valve.
Further, the oiler 2A on the right side wall of casing 2 apart from the bottom surface of casing 2 away from
The distance of the bottom surface of casing 2 with a distance from less than oil-out 2B, distances of the preferably 2A apart from bottom surface
It is half of the 2B apart from bottom surface.In addition, the height of oil return baffle 2C is about casing 2 high
The 1/4~2/3 of degree, the unit box 2 as shown in Fig. 2 the oil return inflow cooling of engine is cooled down
Chamber on the left of interior oil return baffle 2C, due to oil return baffle be arranged at the bottom surface of casing 2 and under
Fang Butong, high temperature gassiness oil return must climb to the height of oil return baffle 2C, then flow to back
Oil baffle 2C right sides chamber, then climbs to oil-out 2B, the gas outlet on the top of casing 2
Automatic exhaust steam valve is provided with 2D, when the pressure in casing 2 is more than setting threshold pressure, should
Automatic exhaust steam valve opens exhaust pressure relief, reaches the purpose cooled down.Cooling unit box 2 of cooling down is naked
It is exposed to outside car, travelling brought cold air by car lowers the temperature.Engine oil return is in casing 2
There is time enough to lower the temperature to be vented, form low temperature fuel oil, flow back to engine and fuel tank need not be flowed back to,
So, from fuel tank into the oil mass of measuring unit casing be exactly engine consumption oil mass, because
This, technical scheme is only needed to using an oil pump capacity for flow measurement masuring tank i.e.
Can, it is to avoid the result error that duplicate measurements is caused.
Oiler 2A and oil-out 2B is located at the side of the casing 2 of oil return baffle 2C both sides
On wall.
One flowmeter is installed in the measuring unit casing, is used to measure by the fuel tank
Oil pump capacity；The flow be calculated as volumetric flowmeter, velocity flowmeter, target type meter,
Electromagnetic flowmeter, vortex flowmeter, spinner flowmeter, differential pressure flowmeter, ultrasonic flowmeter
Or mass flowmenter.The cooling unit box top of cooling down is provided with gas outlet, the gas outlet
Automatic exhaust steam valve is inside provided with, the automatic exhaust steam valve is the low-temperature trace exhaust of float-type or float-ball type
Valve.
The airflow measurement unit casing and cooling cool down unit box be cuboid, cube or
Cylinder.In order to easy for installation, the cool down volume of unit box of the cooling should be not more than and fill
Carry the half of the motor vehicle oil tank volume of fuel consumption measurement apparatus of the invention.The cooling disappears
Gas unit box height should be not less than 150mm.
Technical scheme make the oil return of engine in unit box is cooled down in cooling along
The height of oil return baffle climbs, and then the height along oil return baffle declines, and is cooled down list in cooling
The top of first casing is provided with automatic exhaust steam valve and can discharge contained gas in oil return, therefore has and fill
Point time lower the temperature and exclude contained gas, it is to avoid it is contained in oil temperature change and engine oil return
Influence of the gas to measurement result, meanwhile, the oil return of engine need not flow back to fuel tank but direct
Engine recycling is flowed back to, so, the oil mass of measuring unit casing is entered from fuel tank, that is, flowed
Flow that flowmeter measurement goes out, is exactly the oil mass of engine consumption, it is to avoid caused by duplicate measurements
The inaccurate problem of measurement result.
Brief description of the drawings
Fig. 1 is that single current gauge type flow measurement device of the invention is connected with fuel tank and engine
Schematic diagram；
Fig. 2 is that cooling is cooled down the structural representation of unit box；
Specific embodiment
Use the present invention under (threst stand) and vehicle condition under steady state conditions, a reactor respectively
Single current gauge type fuel consumption meter tested, show that data are analyzed.
Embodiment 1：Bench test
1.1 bench test experimental conditions
Explanation：The control of experimental condition can be effectively ensured the uniformity of operating condition of test.
Fuel：0# diesel oil
Machine oil：YC800 CH-4/SL 15W-40
Calibration point：Oil temperature≤125 DEG C
Leaving water temperature：85±5℃
Fuel oil temperature：38±2℃
In cold rear intake air temperature：49±2℃
Temperature before whirlpool：≤720℃
Exhaust back pressure：≤25kPa
Air-intake negative-pressure：≥-5kPa
This experiment fuel consumption measurement apparatus of the invention used are disappeared by flowmeter and cooling
Gas tank is constituted, and flowmeter used is volume flowmeter, and lower the temperature the tank volume about 2.5L that cools down,
Basal diameter 200mm, is highly 300mm, and oil return baffle is located on bottom surface, is preferably placed at
Bottom surface middle position, is highly 150mm.Single current gauge type fuel of the invention is disappeared simultaneously
The stand mass flowmenter series connection of consumption measurement apparatus and the production of Ai Mosheng companies accesses fuel tank and hair
Between motivation, bench test is carried out at the same conditions, the data to obtaining are divided respectively
Analysis is compared.Table 1 is platform experiment equipment range and precision
1.2 bench test equipment ranges and required precision
Table 1
Above-mentioned range and required precision are based on GB《GB/T 18297-2001 car engines
Machine method for testing performance》Regulation, it is ensured that as analysis foundation test data it is accurate.
1.3 bench test processes
According to GB《GB/T 18297-2001 automobile engine method for testing performances》(herein
It is not described in detail), (installed comprising engine, passed after the completion of bench test preparation
Sensor and rigging up and debugging etc.), carry out external characteristics and universal characteristic test, as oil consumption meter
Amount, while being connected into single current gauge type fuel consumption measurement apparatus of the invention and the platform as reference
Frame mass flowmenter (production of Ai Mosheng companies), synchronous recording external characteristics and universal characteristic operating mode
Under performance test when oil consumption and other parameters, contrasted.Engine test bench characteristic tests number
According to being shown in Table 2, Engine Universal Characteristics test data is shown in Table 3.
The external characteristics of engine is the work that engine sends peak power under best working condition
Make characteristic, be the main operating mode of engine evaluated economy, be characterized in increasing work(with rotating speed
Rate increases sharply, to it is certain interval after power speedup slow down until maximum after decline, now turn
Speed may proceed to increase.Each ginseng of engine table 2 have recorded the experiment under external characteristics operating mode comprehensively when
Number numerical value, monitoring engine condition it is whether abnormal (power, oil temperature, in it is cold before and after pressure,
Turnover coolant-temperature gage etc.), judge that the present invention accesses rear engine performance change situation；Assess simultaneously
Two oil consumption metering devices run on the oil under external characteristics operating mode in engine under the conditions of GB
Consumption certainty of measurement and result.
Universal characteristic：I.e. multi-parameter characteristic, can be seen that engine exists according to universal characteristic experiment
Economy and generator operating conditions under various operating modes, can test simultaneously acquisition three or
Relation between more than three parameters of person, belongs to more full operating mode, can more comprehensively assess engine
Performance.Table 3 have recorded each parameter values when universal characteristic is tested comprehensively, monitor engine
State, judges to access measure device rear engine performance change situation of the invention；Synchronous assessment
Two oil consumption metering devices run on the oil under universal characteristic operating mode in engine under the conditions of GB
Consumption certainty of measurement and result.
1.4 bench test fuel consumption measurement results
Engine accumulation oil consumption under bench test external characteristics operating condition and universal characteristic operating condition
Two measurement apparatus test result contrasts, are shown in Table 4.
Table 4
Explanation：The foundation of fuel consumption measurement accuracy comparison is -- engine pedestal and its equipment meet GB
It is required that, instrument and meter is by certification and has the related gauge check certificate of competency, and certainty of measurement is true
It is credible.
The conclusion of 1.5 bench tests
1.5.1 from engine performance test data can be seen that installation device of the invention after to starting
The indices of machine are almost without obvious influence；
1.5.2 as can be seen from the above table, under steady state conditions, a reactor (i.e. under the conditions of stand), product of the invention
Product and the Ai Mosheng mass flowmenters as stand accreditation instrument, in standard external characteristics and universal spy
Property operation when oil consumption measurement data difference there was only 0.07%, precision complies fully with Standard.
Embodiment 2：Track test
Track test mainly investigates certainty of measurement of the present apparatus in real vehicle complex condition, be divided into
Lower test event " highway vehicle target vehicle speed 80km/h oil consumption test (detection vehicle high-speed
Oil consumption under the actually used driving cycle in road) ", " second grade highway vehicle target speed 60km/h oil consumption
Test (oil consumption under the actually used driving cycle of target detection vehicle second grade highway) ", " constant speed oil
Consumption test (test basis GB is carried out, detection vehicle constant-speed fuel economy measuring accuracy) "
The control of 2.1 experiment general conditions
Fuel：0# diesel oil
Machine oil：YC-900 CI-4/SL 15W/40
Other conditions are controlled：Each assembly of automobile, part and auxiliary equipment, it is complete by regulation assembling,
And be correctly installed on the position of its regulation.During experiment, the technology status of automobile presses its specification
With the regulation about technical conditions and requirement, check-up is carried out to automobile and maintenance (more renews
Air cleaner cartridge etc.).Often keep tire pressure be setting, error no more than ±
10kPa, and it is carried out in accordance with regulations tire rotation.
2.2 equipment ranges and required precision, are shown in Table 5
Table 5
Experimental model：CA5093 type transport vans, osmanthus KB5261, gross combination weight 9500kg.
The special iron block of the load of automobile is uniformly distributed in railway carriage as load, and occupant's mass is every
People takes 2 people based on 65kg, altogether.Tested under the meteorological condition for meeting, tested gas
As when weather it is fine, fogless without rain, relative humidity be less than 95%, 15-25 DEG C of temperature, wind speed
No more than 3m/s.
2.3 experimentations：
Road conditions：The expressway tested, the entire process have about 79 kilometers；Second grade highway save road segment segment,
The entire process have about 93 kilometers；Constant-speed fuel economy is carried out in straight road.
Process：After vehicle is got out according to experimental condition, the good equipment of installation and debugging is (predominantly
Speed monitoring record GPS device and road are composed and ECU monitoring vehicle carried data collecting system)
Afterwards, drive vehicle according to predetermined operating mode and complete test miles, while measuring in mileage region
GPS-type parameter and oil consumption etc..
Data validity：To obtain effective sample, at least to obtain three groups and above effective sample
Tested for target (namely at least 3 times examinations are carried out under each experiment same road segment and operating mode
Test), after completing sample acquirement, compare measurement result.(it is vehicle-mounted as the measuring equipment of reference
Special measuring fuel tank (special design) and measure device of the invention)
2.4 experimental datas：
2.4.1 expressway and second grade highway test data, are shown in Table 6
Table 6
Special oil tank is special design, can effectively measure accumulation oil consumption and (not possess constant-speed fuel economy survey simply
Examination function and electrical interface)
2.4.2 constant-speed fuel economy test data, is shown in Table 7.
Table 7
Remarks：INCA is a kind of engine performance inspection software, can detect accumulation oil consumption；
When experiment is using certain fixation operating mode (fixed vehicle speed, gear), continuous several times experiment is obtained
The arithmetic mean of instantaneous value of original data portion, average fuel consumption source and effective sample is taken, according to average
Data-Statistics fuel consumption per hundred kilometers.
2.5 result of the tests
As shown by data, under the conditions of at least four effective samples are obtained, either vehicle is at a high speed
Road, second grade highway, constant-speed fuel economy test when travel, it is of the invention measure device with to mark
The error of measurement apparatus is between 0.19%~0.36%.
2.6 track test conclusion (of pressure testing)s
The present apparatus can accurately measure complete-vehicle oil consumption under vehicle mounted road experimental condition.
Claims (10)
1. a kind of single current gauge type fuel consumption measurement apparatus, including：Measuring unit casing and cooling
Cool down unit box；The side of the measuring unit casing is connected by pipeline with fuel tank, another
Side is connected by pipeline with engine oiler；It is described cooling cool down unit box one end with hair
The oil return opening of motivation is connected, and the other end passes through pipeline and the engine oiler and the measurement
Pipeline between unit box oil-out is connected；It is characterized in that：In the measuring unit casing
A flowmeter only need to be installed, be used to measure the oil pump capacity of the fuel tank；The list of cooling down of lowering the temperature
The bottom surface of first casing is provided with oil return baffle, and the oil return baffle cools down Cell the cooling
Body is divided into two chambers that top communicates but lower section is obstructed.
2. fuel consumption measurement apparatus according to claim 1, wherein, the oil return baffle
Oiler and oil-out are respectively equipped with the wall box of opposite sides, the oiler is by pipe
Road is connected with the engine, and the oil-out passes through pipeline and the engine and the measurement
Pipeline between unit box oil-out is connected.
3. fuel consumption measurement apparatus according to claim 2, wherein, the cooling is cooled down
The oiler of unit box is less than apart from the cool down distance of unit box bottom surface of the cooling
The position of the oil-out.
4. fuel consumption measurement apparatus according to claim 1, wherein, the oil return baffle
Height be that the cooling cools down the 1/4~2/3 of unit box height.
5. fuel consumption measurement apparatus according to claim 3, wherein, cooling is cooled down unit
The volume of casing should be not more than the automotive oil for loading fuel consumption measurement apparatus of the invention
The half of casing product.
6. fuel consumption measurement apparatus according to claim 1, wherein, the flowmeter is
Volumetric flowmeter, velocity flowmeter, target type meter, electromagnetic flowmeter, vortex flow
Meter, spinner flowmeter, differential pressure flowmeter, ultrasonic flowmeter or mass flowmenter.
7. fuel consumption measurement apparatus according to claim 1, wherein, the cooling is cooled down
Unit box top is provided with gas outlet, and automatic exhaust steam valve is provided with the gas outlet.
8. fuel consumption measurement apparatus according to claim 7, wherein, the automatic exhaust
Valve is the low-temperature trace air bleeding valve of float-type or float-ball type.
9. according to the fuel consumption measurement apparatus that one of claim 1-8 is described, also including being installed on
The cooling system cooled down between unit box and the engine of lowering the temperature.
10. fuel consumption measurement apparatus according to claim 9, the cooling system is fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510487207.0A CN106706057A (en) | 2015-08-10 | 2015-08-10 | Single flowmeter type fuel consumption measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510487207.0A CN106706057A (en) | 2015-08-10 | 2015-08-10 | Single flowmeter type fuel consumption measuring device |
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Family
ID=58923961
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| CN201510487207.0A Pending CN106706057A (en) | 2015-08-10 | 2015-08-10 | Single flowmeter type fuel consumption measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168638A (en) * | 2017-12-01 | 2018-06-15 | 上海汽车集团股份有限公司 | A kind of gasoline engine oil consumption measuring method |
| CN110793590A (en) * | 2019-11-26 | 2020-02-14 | 江西清华泰豪三波电机有限公司 | Method, device and equipment for calculating residual working time of oil tank and storage medium |
| CN112197828A (en) * | 2020-09-04 | 2021-01-08 | 一汽奔腾轿车有限公司 | Method for testing fuel consumption of light automobile during constant-speed running |
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Effective date of registration: 20190227 Address after: 100013 Floor 1407, Building No. 19, East North Third Ring Road, Chaoyang District, Beijing Applicant after: Enchen (Beijing) Technology Development Co., Ltd. Address before: 100029 Yumin Road, Chaoyang District, Beijing, Room 706, Yuanchenxin International Hotel, Beijing Beichen Industrial Group Company Applicant before: Beijing Tianrun Xiangmei Technology Co. Ltd. |
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Application publication date: 20170524 |